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xxMikexx [17]
3 years ago
5

Lamarck's hypothesis of evolution was based on which theory?

Biology
1 answer:
zheka24 [161]3 years ago
5 0
Lamarck's hypothesis of evolution was based on the theory of acquired inheritance.
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Fluid taken in by the ureter
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Answer:

that fluid is transported to the urinary bladder then later expel via the urethra

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Humoral immunity involves ________ cells and ___________
jarptica [38.1K]

Answer:

Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>

Explanation:

Humoral immunity is defined as the immunity which is mediated by several macromolecules presnet in the extracellular fluids such as antibodies, certain antimicrobial peptides, and  complement proteins.

Humoral immunity allows to distinguishes two groups of foreign substances. it involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood. </u>

Humoral immunity begins when an antigens bind to B cells.  Interleukins or helper T cells provides a secondary signal to the B cells that activates a B cell and allows B cell proliferation.  which roduces produce plasma cells. The plasma cell then produces antibodies which are identical to the specific antigen. The antibodies are the released and circulate through the body, binding to antigens.  B cells the further produces memory cellss for future immunity.

So, Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>

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Which botany phenomenon is primarily based on an understanding of physics? . . . A.The way plant pollen is carried by wind to an
belka [17]
A.The way plant pollen is carried by wind to another plant.
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The diagram below shows the chemical structure of a type of lipid molecule called a phospholipid.
SVEN [57.7K]

Answer No 1:

Phospholipids are made up of phosphorus head and two fatty acid molecules.  These phosphorus head and fatty acid tail is joined together by glycerol. Fatty acid molecules are made up of Carbon, hydrogen and oxyge. Hence,carbon and hydrogen can be said as two other elements present in phospholipids.

Answer No 2:

The building blocks of lipids are glycerol and fatty acids.

Lipids can be described as vital organic molecules which are not soluble in water. They are made up of chains of carbon, hydrogen and oxygen. Someof the examples of lipids are fats and oils. Lipids are the main molecules present in an organisms cell membrane and hence have huge biological importance.

Answer No 3:

Lipids are biologically important molecules as they play very vital roles in the functioning of an organisms body. Two of the functions of lipids are:

  • Lipids and phosphorus molecules combine to form phospholipids. The phospholipids are the main molecules out of which the cell membrane is made. Hence, lipids play an essential role in providing the cell membrane its structure.
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Protein have many different functions in organisms. describe a function of proteins formed from the dna in an organism.
goblinko [34]
They make the structure and function of the cell
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